Square D QMB2220 - 200A, 250V, 2-Pole, Fusible, Switch

Square D QMB2220 is a robust fusible switch designed to deliver reliable on/off isolation and precise overcurrent protection in demanding industrial and commercial environments. With its 200 A rating, 250 V capability, and 2-pole configuration, it provides a compact, maintainable solution where space and serviceability matter most.

Key specifications at a glance:

• Model: QMB2220
• Amperage: 200 A
• Voltage: 250 V
• Poles: 2-Pole
• Fusible: Fusible

Why this fusible switch matters

Designed for dependable motor disconnects, panelboards, and branch circuits, the QMB2220 combines sturdy construction with a maintainable fuse-protection approach. It isolates circuits quickly to protect personnel and equipment while containing fault energy, helping downstream devices survive surge events and short circuits.

Who should consider the Square D QMB2220

• Electrical engineers and maintenance teams responsible for motor-driven equipment and industrial automation
• Facilities managers needing a compact disconnect that fits tight panel spaces
• Projects requiring a reliable, field-serviceable fusible switch for branch circuit protection

Practical applications and use cases

Use the QMB2220 wherever swift, clear isolation is essential and where fuse-based protection complements panelboard architectures. Ideal for motor control centers, machine rooms, and distribution panels where a disciplined, two-pole disconnect is required to protect circuits without compromising serviceability.

How it compares to the essentials

Compared to non-fusible or larger disconnect options, the QMB2220 provides targeted overcurrent protection with a compact footprint and maintainable design. It enables straightforward maintenance, predictable fault handling, and cleaner integration into existing electrical layouts without unnecessary bulk.

Built to perform where reliability is non-negotiable, the Square D QMB2220 helps you safeguard equipment, protect personnel, and keep critical processes up and running with confidence.